Tire for vehicles.



J. P. CLARE TIRE FOR VEHICLES.

APPLICATION FILED H1117, 1911.

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J. P. CLARE.

TIRE POR VEHICLES.

APPLICATION FILED mlm?, 1911.

Patented July 23, 1912.

2 SHEETS-SHEET 2.

UNITED sTATEs` PATENT OFFICE.

JAMES P. CLARE, or s'rRA'rHAM, ,N-Ew HAMPSHIRE.

TIRE FOR VEHICLES.

To aMfw/wmz't may concern:

Beit known that 1 JAMES P. CLARE, of Stratham; in the county ofRockingham and State of New Hampshire, a citizenrof the UnitedStates-have ,inventeda new and useful Improvement in"Tires for Vehicles,

of whichthe following is va full, clear,l and exact desciption,reference beinghad to the accompanying drawings, forming a part of thisspecification, in explaining its nature. My invention relates4essentially to those types of tire known as pneumatic tires andespecially to tlioseftypes of 'pneumatic tires known as innertube'tires. y

It is 'among the objects of my invention to providel whereby the tire orrather that part forming the interior or inflatable innertub'eportion'of the ltire may have la plyralit of compartments .eachseparately linlata le and y.each when inflated. acting to inflate andgive form to the entire tube or tire wit-h `the resulting advantage thatin case of puncture of the wall forming one of the compartments the tubeor tire need not be detached from the wheel in connection with which itis used but another compartment may' be inflated, thetire'onlynecessav:aoy

I partments punctured.

rily being removed from the wheel whenfall ofthe compartments have beensuccessively inflated and the walls formingthese com-v Itis a furtherobject of myinvention to provide whereby a tire or tube of the above Astill further object o f my invention isl to provide an improved meanswhereby the separate compartments of the tube or tire ma be separatelyinflated. Y

Iyhave 'shown an embodiment of my invention in the accompanyingdrawings, in which- Figure 1 shows in side elevationa portion of a tube,or tire embodying my` invention.,

Fig. 2 is absection showing the method of I Specication of LettersPatent. Application led February 17, 191kl SerialNo. 609,139.

Patented July 23, 1912.

yFigs...3, 4 and 5are' sections showing, re-

spectively, the various compartments of the tire and the manneroffo-rming and inflating the same. Fig. `Gis a section vof the tireandshows especially `in detail the air'inlet portion or stem-thereof,which is sho-wn in cross vertical section. Fig. 7 is a section takenonthe line 7-7 of Fig. 6. Fig. 8

shows in cro-ss section the tire -applied to the `rim of a wheel, aportion -only of which is shown for illustrating -the mode ofapplication. Fig. 9 is aldetail view partly in cross sectionandpartly inplanuof the -ti're valvular device. Fig. 10 1s an enlarged crosssectional view of the tire and valve.'

- tire as' used herein and 1n the appended claims I -wish to. includeeither an inflatable tire in the generally acce ted meaning of the termor `the4 inflatab e inner portion thereof` usually referred to as theinner tube especially where such is madea rel movable part and iscontained'within a protectmgand retaining envelop or case.

, Qfrepresents the stem ofthe tire through Referring to the drawings :-1represents the body of the tire and by the expression arranging t-hetubes for'iformingv the tire. i

which stem air is' introduced for intlating the tire asl willhereinafter beexplained.

The body -1 of the tire lcomprises an outer wall and is made preferablytov assume when` inflated' a tubular form or such form as suits vit--forthe purposes for which it is designed. The body 1 ofthe tire is made' upof portions of separate combined tubes 3 and 4. These tubes arepreferably made lol'rubber and they are combined by bringing togetherthe opposite side edges ofthe separate tubes to form `joints 5 asdiagrammatically shown 1n Fig. 2. The opposlte side edges of the tubemay be brought together by bending the tubes around a mandrel (notshown)./

The tubes are secured together at the points of the joints 5 preferablyby vulcanizing although the tubes may be reinforced by strips G appliedthereto' at the points of the respective joints. In practice, however, Ihave '-found that merely vulcanizing the ed es of the tubes together atthe points of t e respective joints is sufficient.

The disposition and-arrangement of the .separate tubes .when combinedand united as aforesaid is such that the portions of the tubes otherlthan those forming the body of the tire will form inside said odyseparate partitions 7 and 8, respectively, which connect with the `bodyof the tire on opposite.

sides thereof at the points ofthe respective joints 5. The partitions 7and 8 form with one another and with the body of the tire separateinflatable compartments a, 7) and c, all located wit-hin said body, inwhich connection it will be observed that two of these compartments,namely,lthe compartments a and C; are formed entirely by the separatetubes,` and the o-ther compartment, I), is formedby and between thecombined tubes. In other words, relatively to the joints 5, 5, and tireas made, the compartment a will be formed by and between the outerportion-of the body'of the tire on the one side and on the other by thepartit-ion 7 the compartment b will be formed by and between thepartitions 7 and 8; and the compartment c by and between the innerportion of the body of the tire on the one side and the partition 8 onthe other. -The disposition and arrangement of the combined tubes is`also such thatthe partitions formedinside the body ofthe' tire are inwidth substantially. equal to one another and each substantially equalalso to 'onehalf of the circumferential extent of the interior of the'body of the tire, the circumferential extent. ofthe combined partitionswhenV forming the interior compartment b as aforesaid being sub-ystantially equal to that of the interior ,of the body of the tire. Inother words, when air is introduced' into the vcom artrnent a forinating the tire the partition 7 will be moved 1n against the partition8 and both partitions in against the interior of -the inner portion ofthe body of the tire; when the compartment b is filledwith air for in-Hating the tire the partition 7 will be moved out against the interiorof the outer portion of the body of the tire and the artition 8 inwardlyagainst the interior o4 the inner portion of the lbody of the tire, andwhen air 1s introducedinto the compartment c for inflating the tire ,thepartition 8 will be moved out against the partition 7 and lbothpartitions moved outwardly a ainst the interior of the outerportion othe body of the tire, all of the said compartments being severallyfilled with air for iniating the tire. without undue extenslon orstretching of the parts forming these compartments -or strain upon thejoints of the tire.

It is necessary of course that the several compartments ofthe tire beindependently inflatable and I have provided means wherebly this may bedone throuv h the stem 2 of tire. Atrthe 4point o the stem 2 the body ofthe tire is thickened by a reinforce# ment or patch 9. The stem 2v-extends through the wall of the tire and patch 9 and is securedthereto by clamp members 10and 11, respectively. The clamp member 10 isxedto the bottom end of the stem 2 and located inside the body of thetire while the clamp 11 lits hard against the outside of the body of thet-ire or patch secured to it at a point opposite the clamp 10. rlheclamp 11 is retained by a keeper 12 and interposed washer 13 presseddo-wn and secured by a .two sides of the tire are nipples- 16 and 17,

respectively. The; passages 18 and 19, respectively, are formed throughthese respective nipples and communicate with the hollow interior of thestem. Secured tothe v ni plc 1Q is atube 20, preferably a flattened tue, which entends*downover the tace of the tire between it and the patch9 to the `pcint'ofkthe 'joint 5 on .one side of the tire where the tubeenters through the joint and into thev compartmenta of the tire. Bvmeans of the tube'20 the passage 18 through the nipple 16 is continuedinto the compartment a as aforesaid. 0n the lopposite side 0f. the -re'there connects'with the nipple 17 a'tube 421 which extends down overthe side of thefface of the tire between it and the patch' to the pointof the joint 5 on this same side where the tube enters` through the vjoint and into thecompartment b of the tire.

y Elhetub'e 21 'acts to `form a continuation of' the passage 19 throughthe stem 17 into the compartment b of the tire as aforesaid. r Extendingalso through the hub 15 from the hollow interior of the stem is apassage 22 `which extends laterally from the hollow of the stem into thehub and thence outwardly throu h the hub and clamp 10 atllxed to it,direct y into and to communicate directly with the compartment c of thetire. rThis passage 22 ormsaccordingly a" direct communication betweenthe hollow of the stem and the'compartm'ent c of the tire.

The entrances 'from the hollow of the tire .Stem into the respectivepassages 18, 19 and 22, which communicate with the several compartmentsof the tire are circularly arranged and the interior of the valve stemat this point is made to gradually incline inwardly to form an annularinwardly inclined or beveled valve seat 23. Coperating with this seat isa valve 24 correspondingly beveled or inclined. The valve is providedwith an extension 25 which projects through the bottom end of the tirestem and also through the clamp 11 where it is secured by means of alock nut 26 and washer 27 interposed between the nut and the clampll.The nut 26 when tightened acts to hold the valve snugly onto its valve.seat forming an airtight joint. The valve emanata and thence outwardlythrough the tace of the valve at a point where it may be coincident withthe entrances into the respective passages 18, 19 and 22. The stem 28 ofthe valve at itsupper end is provided `with 'a threaded socket :torreceiving the usual connection for intlating the tire. Normally thepassage through the valve stem is closed by means of a cap 31, thewholebeing inclosed within an external cap 32 which screws onto the threaded`exterior of the.

stem l of the tire.

The operation of inflating the tire is substantially like that ofinflating any tire excepting that the various compartments a, b and cshould, when the tire is properly used, be preferably intiated insequence. In the first instance, assuming the tire to be in place on therim of a wheel, the caps 32 and 31 are iirst removed and the valve stem28 turned to a position where the end of the passage 29 will registerwith the passage 18 which connects with the compartment a oi? the tire.The valve will then cover and securely close the passages 19 and `22,respectively, which connect with the compartments b and c ot' the tire.The air compressor, if not sooner applied, is then applied to the valvestem and air introduced through the passages 29 and 18 into thecompartment a of the tire filling this compartment and so iniiating thetire as above explained. After the tire has been thus inflated the stemis turned to a ypoint where the outlet from the passage 29 will nolonger coincide with the entrance to the passage 18 when the air will beretained within the tire by means of the valve. The air compressionmeans is then removed and the caps 31 and 32 replaced. The tire is thenready for use. Then the, wall. of the compartment a has become puncturedthen the valve stem is turned to the position where the outlet of thepassage 29 willcoincide with the passage 19 which connects with thecompartment b of the tire, the valve then closing the passages 18g and22. When the operation of filling the compattment of the tire has beencompleted the valve is turned to a position where it will close thepassage 17 preventing -the escape of air from this compartment. Afterthe wall of the compartment b is punctured the operation is againrepeated by turning the valve to a position where the outlet from thepassage 29 will coincide with the passagev 22 connecting with@ thecompartment c of the tire. After this compartment has been filled withair for iniiating the tire the valve is turned to a position Wherel thepassage 29 through4 it will no longer coincide with the passage 22, butwill close this passage preventing the escape of air from thecompartment c of the tire. After the -walls 'of all three of thecompartments 4have been l'punctured the tire is removed rom the WheelAand repair made.

Although the valve 24 will act to prevent i air from escaping from anyone of the compartments of the tire, the close fit of the valve stemWithinthe stem of the tire acting also to assist in the retention ofair, yet in order that no air may escape .by accident back through thepassage 29 and hollow of the valve' stem prefer to locate within t-hehollow of the valve stem an automatic outwardly-closingvinwardly-opening air valve 33. A valve of this character is well knownto those skilled inthe art and needs nov eX-' planation ofits-construction or operation.

,The tire embodying' my invention presents substantially the sameoutwardA appearance and arrangement as tires now in Acommon use.

in Fig. 8 I have shown a tireV like that embodying my inventionappliedto the rim 34 of a wheel,'the tire there shown being an' innertube contained within an envelop or casing 35 retained` in the customarymanner. It' will be seen that the general arrangement and dispositionvof the parts including the valve stem resemble in external dispositionand arrangement tires now in common use. Accordingly tires or tubesembodying my invention need nov special adaptation or construction ofthe parts or lrim to which they are applied in order to valvularstructure herein described, owing Ato the requirements of the PatentOffice,

have been divided out of this application and may be seen by referenceto my ap lication for Letters Patent of the United States entitledValves for tires, Serial No. 633,361, filed June 15, 1911. Y

Having thus fully described my invention, 'i claim and desire to secureby Letters Patent of the United States 1. An inflatable `tire consistingof two separate combined tubes lunited to form a body for said tire andinside said body three separate compartments, and whichv tubes arearranged and united in a manner whereby each of said separate .tubeswill form a separate compartment and portions of said combined tubes thethird one of said compartments, the portions of said combined tubesforming said third compartment being substantially equal to one anotherin width and havingr When combined a circumferential eiitentsubstantially equal to that of' the interior of said body of the tire..

2. An inflatable tire having a body and inside said body sept-iratepartitions formingl with one another and with said body separateiniiatable compartments, said tire consisting of separate ,combinedtubes arranged and united in a manner whereby portions thereof maytogether form the body of said tire and other portions thereof said parftitions and Which partitions, in Width are each substantially equal toone half of the circumferential extent ofthe interior ot' said body ofthe tire. y

3. An inflatable tire consisting of a combination of two separate tubessuperposed upon one another and united at the opposite sides thereofwhereby portions of the combined tubes will together form the body otsaid tire and other portions separate partitions inside said bodyforming' separate in tlatable compartments, one of said compartmentsbeing formed by and between said partitions, the portions of said tubesforming this compartment having each subn stantially the saine Width andwhen combined a circumferential extent substantiaily equal to that otthe interior of' said body ot the tire,

et. an iniiatable tire consisting; of two separate tubes superposed uponone another noaagaao and united at the opposite sides thereof wherebyeach of said tubes will form a separate inde-table compartment and athird inatable compartment Will be formed by and between portions ofsaid combinedtubes, the Width of the portions of said combined tubesforming said third compartment being substantially equal in Width to oneanother and having when combined a circumferential extent substantiallyequal to that of the interior of said tire.

5. Ain intiatable tire having a body and inside said body a partitiondividing said body into separate compartments, a patch secured to saidbody', an ain receiving valve stem secured to said body at the point ofsaid patch and having a passage therein connec'ting directly with one ofthe interior compartments of said body, said stem hav ing also a furtherpassage leading therefrom over the body of said tire and under said`patch and connecting with another compartment of said tire, and meansWhereby said compartments may be separately iniated from the point ofsaid stein through one or the other of saidpassages as aforesaid.

GEORGE W. RAND, C. B SHAPARD.

